/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionAdd.h
class UMaterialExpressionAdd : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
FExpressionInpu...
A
FExpressionInpu...
B
float
ConstA
Only used if A is not hooked up
float
ConstB
Only used if B is not hooked up